Vhf 1 (136-162 Mhz) 25-45 W Dc And Audio Circuits (Sht 1 Of 2) - Motorola Radius CM200 Service Manual

4-14
1
COMP_B+
B+
BATT_SENSE
IF500
1
FILT_SW_B+
C1085
1000pF
EMERGENCY_ACCES_CONN
EMERGENCY_SENSE
DC_POWER_ON
D3_3V
R5035
47K
ONOFF_SENSE
Smart Fuse Circuit
IGNITION
VHF 1 (136–162 MHz) 25–45 W DC and Audio Circuits (Sht 1 of 2)
IF501
IF503
L120
C1113 C1098 spacer for TO-22 0
C1097 C1088 C1114
35U02
1000pF 220pF M6
220pF 1000pF 1000pF
SOURCE
FILT_B +
L500
35U02
C5000 C5061 C5084 C5086 VR500 C5067 C5060 C5083 C5085
24V
1000pF 100pF .022uF 1000pF 0.1uF 100pF .022uF
0.1uF
TP500
FILT_SW_B+
TEST_POINT
1
U514
R5000 R5031
0 62K
C5094
C1128
VR504
C5062 R5050
220pF 220pF C5092 C5063
13K
0.1uF
3.3V
220p F 0.1uF
FILT_B +
R5020
150K
R5030
33K
R5062 Q502
Q506
R5036 10K
47K
VR503
C5037
R5049
15K
0.1uF
3.3V
TP556
TEST_POINT
D511
1
R5069
10K
Q504
Volume
Indirect Audio
C5104
10uF
6 4
5
S5010
SWITCH
50.K
D3_3V
2 3
1
R5079
R5071
100
2.2K
VOL_INDIRECT
C5035
Place near uP
0.1uF
D500
FILT_B +
R5074
1K
R5039
100K
D513
VR501
R5082
R5083
5.1V
51K 270K
R5089
1MEG R5085
Q500 Q503
1MEG
DNP
DNP
POWER SUPPLY
U501
LM2941T
4 5 9.3V
VIN VOUT
2 1
C5005 C5095
ON_OFF ADJ C5015 C5074
R5081
GND 6.34K
100uF 0.1uF 1000pF 220pF
1%
3
C5001 R5038
33K
R5001
10uF 1K
1%
5V RF Regulator
TP555
1
TEST_POINT U503
LP2951C
On/Off for ATE 8
INPUT
7 FEEDBACK
3
SHUTDOWN
D502
GND
4
R5028
100K
R5029
100K
3.3V RF REGULATOR
U508
MC33269D
3
IN
GND
1
C5043 C5066
1uF
1000pF
Q505 3.3v Digital REGULATOR
C5119
R5037
U510
10K
10uF
LP2986ILDX
4 INPUT
8 SHUTDOWN
6 SENSE
FEEDBACK
3
C5041 C5065 TAP
GND1
2.2uF 1000pF
1
FILT_B+
R5103
24K
C5115
R5092
2
DEMOD
10K
3
5V
C5113
220pF
R5095 DNP
C5111
24K
1000pF
C5114
R5096
1uF
10K
VHF 25–45 W Band 1 PCB 8486487Z03 / Schematics
SOURCE
AUDIO POST_LIMITER_FLAT_TX_AUDIO_RETURN_OPT_BR
9V
IF502
9.3V 1
9V FLAT_TX_AUDIO_INPUT_ACCESS_CONN
C5096
C1087 C1034 C1122 C1123 C1124 C1125 C1127
220pF
220pF
220pF 1000pF 220pF 220pF 220pF
100uF
SOURCE
5V
1
OUTPUT
5V TO LVFRACN
5
ERROR
2
SENSE
For mid_band
6
DNP
5V_TA P
C5006 C5016 C5068 R5002 0
5V_C H
1000pF C5040 C5039
10uF 0.1uF
0.1uF 0.1uF
DNP
DNP
SOURCE
3V
2
OUT 3.3V to IFIC, ASFI
C5070
C5008 C5018
0.1uF 1000pF
10uF
RESET
SOURCE
3.3v digital
D3_3V
5
OUTPUT D3_3V
ERROR 7
2
C5069 C5007
C5017
GND2
1000pF
0.1uF
47uF
9
D501
VSTBY
DNP
C512 0
VR502 DNP
47uF
DNP
DNP
R5097
0
NU
6.8pF 16pF
C5117
DNP DNP
R5093
R5099
5V
DNP
10K 100K
C5118
8
R5094
1 6 8
R5100
0.1uF
7
1MEG
4 5
1MEG
4
C5116 DNP
U500-1
LM2904 U500-2
220pF
LM2904
DNP
R5098
DISC
0